Share
Ask OBDII Question

19,412 questions

9,936 answers

626 comments

5,889 users

Top Users

Reynaldo (3669 Points)
G37driver (2741 Points)
OBDIITech (2389 Points)
milonajo1 (737 Points)
OBDtech2 (165 Points)
corvette-78 (127 Points)
knowledge 1488 (124 Points)
Samat Bekov (117 Points)
ptl (113 Points)
sabtele (112 Points)

P0420 Will replacing the oxygen sensor fix the problem?

Vehicle: 2002 Infiniti G20
asked Apr 13, 2012 by anonymous
Most likely not, the catalyst converter needs to be replaced

1 Answer

The cat does npt to be replaced unless the co2 levels are out of wack. The one that is most likely nad os the one right.before the cat conv.while its job is to fluctuate its probably just staying steady therefor you get a p0420 code
answered Oct 28, 2012 by anonymous

Related questions

...